diff --git a/icmp.c b/icmp.c
index 6bd87fd..21ea2d7 100644
--- a/icmp.c
+++ b/icmp.c
@@ -192,6 +192,7 @@ int icmp_tap_handler(const struct ctx *c, int af, const void *addr,
 		struct sockaddr_in6 sa = {
 			.sin6_family = AF_INET6,
 			.sin6_addr = IN6ADDR_ANY_INIT,
+			.sin6_scope_id = c->ifi6,
 		};
 		struct icmp6hdr *ih;
 		int id, s;